Peer-reviewed veterinary case report
Signs of thalamic stroke in 16 dogs seen on MRI scans
By Gonçalves, Rita et al.·Published in Veterinary journal (London, England : 1997)·2011·Department of Veterinary Science, United Kingdom·View original on PubMed →
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Original publication title: Clinical and topographic magnetic resonance imaging characteristics of suspected thalamic infarcts in 16 dogs.
- Species:
- dog
Plain-English summary
A group of 16 dogs showed sudden signs of brain problems, like difficulty with balance and coordination, due to suspected thalamic infarcts (a type of stroke in the brain). The MRI scans revealed different areas of the thalamus affected, leading to symptoms such as circling, ataxia (uncoordinated movement), and issues with their response to stimuli. Some dogs also had additional brain areas impacted. Treatment details weren't specified, but recognizing these symptoms can help vets diagnose and manage the condition effectively.
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Abstract
Sixteen dogs with acute-onset, non-progressive signs of brain dysfunction and magnetic resonance imaging (MRI) characteristics compatible with thalamic infarction are described. Topographically the MRI lesions could be grouped in three thalamic regions, namely, paramedian (8/16), extensive dorsal (5/16) and ventrolateral (3/16). Paramedian lesions resulted in signs typical of vestibular dysfunction. Extensive dorsal lesions were associated with vestibular ataxia, circling and contralateral menace response deficits. Ventrolateral lesions resulted in circling and contralateral proprioceptive deficits. In several dogs, regions other than the thalamus were also affected: four extended into the midbrain; six extended to the internal capsule, and two dogs had a second lesion in the cerebellum. Three clinical syndromes were identified in association with thalamic infarction. These signs varied somewhat, most likely because lesions were not confined to specific nuclear boundaries and involved different combinations of thalamic nuclei.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/20456988/